Wilder is perhaps best known for his role as Willy Wonka in the 1971 film Willy Wonka & the Chocolate Factory, but his comedic talent was illuminated in the Mel Brooks films Blazing Saddles and Young Frankenstein. He was married to comedian Gilda Radner from 1984 until her death from ovarian cancer in 1989, and he co-founded the support group Gilda’s Club.

On Twitter, comedians, writers, and actors shared their condolences and favorite memories.

Wilder’s nephew, Jordan Walker-Pearlman, said in a statement that he died from complications due to Alzheimer’s: “We understand for all the emotional and physical challenges this situation presented we have been among the lucky ones—this illness-pirate, unlike in so many cases, never stole his ability to recognize those that were closest to him, nor took command of his central-gentle-life affirming core personality.”